Combined electric power fitting for high-voltage overhead line
By designing and installing high-voltage overhead line combined power fittings with mechanisms for installation, support, adjustment, limiting, and fixing, the problem of adjusting for thermal expansion and contraction of cables has been solved, achieving stable fixing and adaptive adjustment of high-voltage cables.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional power fittings are difficult to adjust after high-voltage cables are installed, and cannot adapt to the thermal expansion and contraction of the cables.
A high-voltage overhead line combined power fitting was designed, which includes installation, support, adjustment, limiting and fixing mechanisms. The adjustment mechanism is used to adjust according to the thermal expansion and contraction of the cable, and the limiting and fixing mechanisms are used for limiting and fixing.
This improves the practicality of the equipment, effectively adapting to the thermal expansion and contraction of high-voltage cables, and ensuring the stable installation and fixation of the cables.
Smart Images

Figure CN224097378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power fittings for power lines, and in particular to a power fitting for high-voltage overhead lines. Background Technology
[0002] Overhead line electrical fittings are an indispensable and important component of power systems. They are mainly used to connect, support, protect, and insulate various types of equipment in power systems. Electrical fittings, or fittings for short, are accessories that connect and combine various devices in power systems to transmit mechanical and electrical loads or provide some form of protection.
[0003] For example, in the utility model patent application number CN202221255376.3, the high-voltage overhead line combined power fittings disclosed represent a type of prior art. Its main structure includes a suspension fitting body, hook, adjustment groove, connecting pipe, fixing bolt and sealing gasket, etc. The function of the high-voltage overhead line combined power fittings is realized through the cooperation of the suspension fitting body, hook, adjustment groove, connecting pipe, fixing bolt and sealing gasket, etc.
[0004] Traditional power fittings are not convenient for adjusting high-voltage cables after installation. Furthermore, high-voltage cables expand and contract with temperature changes in winter and hot weather, and traditional power fittings are not suitable for adjusting these changes. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a high-voltage overhead line combined power fitting that installs both ends of a high-voltage cable in an adjustment mechanism, fixes the high-voltage cable through the adjustment mechanism, winds the high-voltage cable around the adjustment mechanism, allows the operator to adjust the cable according to its thermal expansion and contraction, limits the high-voltage cable through a limiting mechanism, and fixes the adjusted cable through a fixing mechanism, thereby improving the practicality of the equipment.
[0006] This utility model discloses a combined power fitting for high-voltage overhead lines, including an installation mechanism; it also includes a support mechanism, an adjustment mechanism, a limiting mechanism, and a fixing mechanism. The support mechanism is installed on the installation mechanism, the adjustment mechanism is installed on the support mechanism, the limiting mechanism is installed on the adjustment mechanism, and the fixing mechanism is installed on the support mechanism, with the fixing mechanism located on both sides of the adjustment mechanism. The installation mechanism is installed on the high-voltage line frame, supporting the support mechanism, which in turn supports the adjustment and fixing mechanisms. Both ends of the high-voltage cable are installed in the adjustment mechanism, which then fixes the high-voltage cable and winds it around the adjustment mechanism. The operator adjusts the adjustment mechanism according to the cable's thermal expansion and contraction, the limiting mechanism limits the high-voltage cable, and the fixing mechanism secures the adjusted cable, thus improving the equipment's practicality.
[0007] Preferably, the installation mechanism includes multiple mounting clamps, multiple first screws, multiple first bolts, multiple support rods, and a first support beam. The multiple mounting clamps are installed on the high-voltage line frame, the multiple first screws are respectively installed at both ends of the multiple mounting clamps, the multiple first bolts are respectively rotatably installed on the multiple first screws, the side ends of the multiple support rods are respectively installed on the side walls of the multiple mounting clamps, and the bottom end of the first support beam is installed on the top end of the multiple support rods. The mounting clamps are fixedly installed on the high-voltage line frame through the cooperation of the multiple first screws and multiple first bolts, the multiple support rods respectively support the first support beam, and the first support beam supports the support mechanism, thereby improving the practicality of the equipment.
[0008] Preferably, the support mechanism includes a support plate, two sets of high-voltage insulators, a second bolt, and two sets of second support beams. The top of the support plate has a limiting hole. The bottom ends of the two sets of high-voltage insulators are fixedly installed on the top of the support plate. The second bolt is installed on the upper part of the two sets of high-voltage insulators. The two sets of second support beams are rotatably installed on the upper part of the two sets of high-voltage insulators. The second bolt is supported by the two sets of high-voltage insulators. The cooperation of the two sets of second support beams and the two sets of high-voltage insulators enables the second support beams to support the two sets of high-voltage insulators. The two sets of high-voltage insulators support the support plate, improving the practicality of the equipment.
[0009] Preferably, the adjusting mechanism includes a rotating rod, two sets of bearings, two sets of first mounting rods, two sets of winding wheels, two sets of fixing holes, and a limiting wheel. An insulated handle is provided at the top of the rotating rod. The inner rings of the two sets of bearings are respectively mounted on the rotating rod, and the bottom ends of the two sets of first mounting rods are respectively mounted on the outer rings of the two sets of bearings. The two sets of winding wheels are respectively fixedly mounted on the rotating rod, and each set of winding wheels has two sets of fixing holes. An electric chuck is installed inside each of the two sets of fixing holes. The limiting wheel is installed on the upper part of the rotating rod and has multiple limiting holes. The two sets of bearings support the rotating rod via the two sets of first mounting rods. The two ends of the two cables are respectively fixed inside the two sets of fixing holes, and the two high-voltage cables are respectively wound around the two sets of winding wheels. The high-voltage cables are adjusted by the operator using the adjusting handle of the rotating rod. The limiting wheel and the limiting mechanism work together to limit the rotation rod, improving the practicality of the equipment.
[0010] Preferably, the limiting mechanism includes a limiting rod, a limiting plate, a spring, and a limiting groove. An insulated handle is provided at the top of the limiting rod. The limiting plate is fixedly installed at the lower part of the limiting rod. The bottom end of the spring is installed at the top of the limiting plate, and the top end of the spring is installed at the top of the support plate. The limiting groove is installed at the top of the support plate. By extending the spring and limiting the limiting plate, the limiting rod descends into the limiting holes of multiple limiting wheels, thus limiting the rotation rod. The limiting groove also limits the limiting rod, improving the practicality of the equipment.
[0011] Preferably, the fixing mechanism includes multiple fixing slots, multiple first fastening screws, multiple fastening bolts, multiple second fastening screws, multiple fixing plates, and multiple second mounting rods. Each of the multiple fixing slots has a U-shaped groove inside. The top ends of the upper fixing slots are respectively mounted on the bottom ends of the multiple second mounting rods. The top ends of the multiple first fastening screws are respectively fixedly mounted on the bottom ends of the upper fixing slots. The lower fixing slots are slidably mounted on the multiple first fastening screws. The multiple fastening bolts are slidably mounted on the multiple first fastening screws, and the multiple fastening bolts are located below the multiple fixing slots. The multiple second fastening screws... The top of each component is rotatably mounted on the bottom of multiple fixed plates, which are located in the grooves of multiple lower fixed slots. The tops of multiple second mounting rods are mounted on the bottom of the support plate. The multiple second mounting rods support the multiple fixed slots. By placing two high-voltage cables in the multiple fixed slots, the multiple lower fixed slots are raised by rotating multiple fastening bolts. The multiple fixed slots are then secured by multiple first fastening screws and multiple fastening bolts. By rotating multiple second fastening screws, the multiple fixed plates are raised to secure the high-voltage cables inside the fixed slots, thus improving the practicality of the equipment.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the installation mechanism is installed on the high-voltage line frame, the installation mechanism supports the support mechanism, the support mechanism supports the adjustment mechanism and the fixing mechanism, the two ends of the high-voltage cable are respectively installed in the adjustment mechanism, the high-voltage cable is fixed by the adjustment mechanism, and the high-voltage cable is wound around the adjustment mechanism. The operator adjusts the adjustment mechanism to adjust the cable according to the thermal expansion and contraction of the cable. The limiting mechanism limits the high-voltage cable, and the fixing mechanism fixes the adjusted cable, thereby improving the practicality of the equipment. Attached Figure Description
[0013] Figure 1 This is an isometric schematic diagram of this utility model;
[0014] Figure 2 This is an isometric schematic diagram of the installation mechanism of this utility model;
[0015] Figure 3 This is an isometric schematic diagram of the support mechanism of this utility model;
[0016] Figure 4 This is an isometric schematic diagram of the adjustment mechanism of this utility model;
[0017] Figure 5 This is an isometric schematic diagram of the limiting mechanism of this utility model;
[0018] Figure 6 This is a front sectional view of the fixing mechanism of this utility model.
[0019] The attached diagram is labeled as follows: 01, Installation mechanism; 11, Installation clamp; 12, First screw; 13, First bolt; 14, Support rod; 15, First support beam; 02, Support mechanism; 21, Support plate; 22, High-voltage insulator; 23, Second bolt; 24, Second support beam; 03, Adjustment mechanism; 31, Rotating rod; 32, Bearing; 33, First mounting rod; 34, Winding wheel; 35, Fixing hole; 36, Limiting wheel; 04, Limiting mechanism; 41, Limiting rod; 42, Limiting plate; 43, Spring; 44, Limiting groove; 05, Fixing mechanism; 51, Fixing groove; 52, First fastening screw; 53, Fastening bolt; 54, Second fastening screw; 55, Fixing plate; 56, Second mounting rod. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0021] like Figure 1 As shown, a high-voltage overhead line combined power fitting includes an installation mechanism 01; it also includes a support mechanism 02, an adjustment mechanism 03, a limiting mechanism 04, and a fixing mechanism 05. The support mechanism 02 is installed on the installation mechanism 01, the adjustment mechanism 03 is installed on the support mechanism 02, the limiting mechanism 04 is installed on the adjustment mechanism 03, and the fixing mechanism 05 is installed on the support mechanism 02, with the fixing mechanism 05 located on both sides of the adjustment mechanism 03.
[0022] The installation mechanism 01 is installed on the high-voltage line frame, and the installation mechanism 01 supports the support mechanism 02. The support mechanism 02 supports the adjustment mechanism 03 and the fixing mechanism 05. The two ends of the high-voltage cable are installed in the adjustment mechanism 03 respectively, and the high-voltage cable is fixed by the adjustment mechanism 03. The high-voltage cable is also wound around the adjustment mechanism 03. The operator adjusts the adjustment mechanism 03 to adjust the cable according to the thermal expansion and contraction of the cable. The limit mechanism 04 limits the high-voltage cable, and the fixing mechanism 05 fixes the adjusted cable, thereby improving the practicality of the equipment.
[0023] like Figure 2 As shown, the installation mechanism 01 includes multiple mounting clamps 11, multiple first screws 12, multiple first bolts 13, multiple support rods 14, and a first support beam 15. The multiple mounting clamps 11 are installed on the high-voltage line frame, the multiple first screws 12 are respectively installed at both ends of the multiple mounting clamps 11, the multiple first bolts 13 are respectively rotatably installed on the multiple first screws 12, the side ends of the multiple support rods 14 are respectively installed on the side walls of the multiple mounting clamps 11, and the bottom end of the first support beam 15 is installed on the top end of the multiple support rods 14.
[0024] like Figure 3 As shown, the support mechanism 02 includes a support plate 21, two sets of high-voltage insulators 22, a second bolt 23, and two sets of second support beams 24. The top of the support plate 21 is provided with a limit hole. The bottom ends of the two sets of high-voltage insulators 22 are respectively fixedly installed on the top of the support plate 21. The second bolt 23 is installed on the upper part of the two sets of high-voltage insulators 22. The two sets of second support beams 24 are respectively rotatably installed on the upper part of the two sets of high-voltage insulators 22.
[0025] The mounting clamp 11 is fixedly installed on the high-voltage line frame through the cooperation of multiple first screws 12 and multiple first bolts 13. Multiple support rods 14 support the first support beam 15 respectively. The first support beam 15 supports the support mechanism 02. The second bolt 23 is supported by two sets of high-voltage insulators 22. The second support beam 24 supports the two sets of high-voltage insulators 22 through the cooperation of two sets of second support beams 24. The two sets of high-voltage insulators 22 support the support plate 21 respectively, thereby improving the practicality of the equipment. Example 2
[0026] like Figures 4 to 6 As shown, based on Embodiment 1, it also includes an adjustment mechanism 03, a limiting mechanism 04, and a fixing mechanism 05. The adjustment mechanism 03 includes a rotating rod 31, two sets of bearings 32, two sets of first mounting rods 33, two sets of winding wheels 34, two sets of fixing holes 35, and a limiting wheel 36. An insulated handle is provided at the top of the rotating rod 31. The inner rings of the two sets of bearings 32 are respectively mounted on the rotating rod 31, and the bottom ends of the two sets of first mounting rods 33 are respectively mounted on the outer rings of the two sets of bearings 32. The two sets of winding wheels 34 are respectively fixedly mounted on the rotating rod 31. On the rotating rod 31, two sets of winding wheels 34 are respectively provided with two sets of fixing holes 35, and electric chucks are respectively provided inside the two sets of fixing holes 35. The limiting wheel 36 is installed on the upper part of the rotating rod 31, and the limiting wheel 36 is provided with multiple limiting holes. The limiting mechanism 04 includes a limiting rod 41, a limiting plate 42, a spring 43 and a limiting groove 44. An insulated handle is provided at the top of the limiting rod 41. The limiting plate 42 is fixedly installed on the lower part of the limiting rod 41. The bottom end of the spring 43 is installed on the top end of the limiting plate 42, and the top end of the spring 43 is installed on the top end of the limiting plate 42. The limiting groove 44 is installed on the top of the support plate 21; the fixing mechanism 05 includes multiple fixing grooves 51, multiple first fastening screws 52, multiple fastening bolts 53, multiple second fastening screws 54, multiple fixing plates 55 and multiple second mounting rods 56. The interior of the multiple fixing grooves 51 is provided with U-shaped grooves. The tops of the upper multiple fixing grooves 51 are respectively installed on the bottom ends of the multiple second mounting rods 56. The tops of the multiple first fastening screws 52 are respectively fixedly installed on the bottom ends of the upper multiple fixing grooves 51. The lower multiple fixing grooves 51 are respectively slidably installed on the multiple first fastening screws 52. The multiple fastening bolts 53 are respectively slidably installed on the multiple first fastening screws 52, and the multiple fastening bolts 53 are respectively located below the multiple fixing grooves 51. The tops of the multiple second fastening screws 54 are respectively rotatably installed on the bottom ends of the multiple fixing plates 55. The multiple fixing plates 55 are respectively located in the grooves of the multiple lower fixing grooves 51. The tops of the multiple second mounting rods 56 are respectively installed on the bottom ends of the support plate 21.
[0027] Two sets of bearings 32 support the rotating rod 31 via two sets of first mounting rods 33, fixing the two ends of the two cables inside the two sets of fixing holes 35 respectively. The two high-voltage cables are then wound around two sets of winding wheels 34. The high-voltage cables are adjusted by the operator using the adjusting handle of the rotating rod 31. The rotating rod 31 is limited by the cooperation of the limiting wheel 36 and the limiting mechanism 04. The limiting rod 41 descends into the limiting holes of the multiple limiting wheels 36 via the extension spring 43 and the limiting plate 42, thus limiting the rotation rod 31. The positioning groove 44 limits the positioning rod 41, and multiple second mounting rods 56 support multiple fixing grooves 51 respectively. By placing two high-voltage cables in multiple fixing grooves 51 respectively, multiple fixing grooves 51 at the bottom are raised by rotating multiple fastening bolts 53 respectively. Multiple fixing grooves 51 are fastened by the cooperation of multiple first fastening screws 52 and multiple fastening bolts 53. Multiple fixing plates 55 are raised by rotating multiple second fastening screws 54 respectively to fix the high-voltage cables inside the fixing grooves 51, thereby improving the practicality of the equipment.
[0028] like Figures 1 to 6 As shown, this utility model discloses a high-voltage overhead line combined power fitting. During operation, the mounting clamp 11 is first fixedly installed on the high-voltage line frame via the cooperation of multiple first screws 12 and multiple first bolts 13. Multiple support rods 14 support the first support beam 15, which in turn supports the support mechanism 02. Then, two sets of high-voltage insulators 22 support the second bolts 23. Two sets of second support beams 24 and two sets of high-voltage insulators 22 then support the two sets of high-voltage insulators 22. The two sets of high-voltage insulators 22 support the support plate 21. Next, two sets of bearings 32 support the rotating rod 31 via two sets of first mounting rods 33. The two ends of the two cables are fixed inside two sets of fixing holes 35, and the two high-voltage cables are wound onto two sets of winding wheels 34. The process is then completed by the operator. The operator adjusts the high-voltage cable by adjusting the handle of the rotating rod 31. The rotating rod 31 is limited by the cooperation of the limiting wheel 36 and the limiting mechanism 04. Then, the limiting rod 41 is lowered into the limiting holes of the multiple limiting wheels 36 by the extension spring 43 and the limiting plate 42, thus limiting the rotating rod 31. The limiting groove 44 limits the limiting rod 41. Finally, multiple second mounting rods 56 support multiple fixing grooves 51 respectively. By placing two high-voltage cables in the multiple fixing grooves 51 respectively, the multiple fixing grooves 51 at the bottom are raised by rotating multiple fastening bolts 53 respectively. The multiple fixing grooves 51 are fastened by the cooperation of multiple first fastening screws 52 and multiple fastening bolts 53. The multiple fixing plates 55 are raised by rotating multiple second fastening screws 54 respectively to fix the high-voltage cable inside the fixing groove 51, thereby improving the practicality of the equipment.
[0029] The main function of this utility model is to install both ends of the high-voltage cable in the adjustment mechanism 03, fix the high-voltage cable through the adjustment mechanism 03, and wind the high-voltage cable around the adjustment mechanism 03. The operator adjusts the adjustment mechanism 03 to adjust the cable according to the thermal expansion and contraction of the cable. The limit mechanism 04 limits the high-voltage cable, and the fixing mechanism 05 fixes the adjusted cable, thereby improving the practicality of the equipment.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A high-voltage overhead line combined power fitting, comprising an installation mechanism (01); characterized in that, It also includes a support mechanism (02), an adjustment mechanism (03), a limiting mechanism (04), and a fixing mechanism (05). The support mechanism (02) is installed on the mounting mechanism (01), the adjustment mechanism (03) is installed on the support mechanism (02), the limiting mechanism (04) is installed on the adjustment mechanism (03), and the fixing mechanism (05) is installed on the support mechanism (02), with the fixing mechanism (05) located on both sides of the adjustment mechanism (03).
2. The high-voltage overhead line combined power fitting as described in claim 1, characterized in that, The installation mechanism (01) includes multiple mounting clamps (11), multiple first screws (12), multiple first bolts (13), multiple support rods (14), and a first support beam (15). The multiple mounting clamps (11) are installed on the high-voltage line frame. The multiple first screws (12) are respectively installed at both ends of the multiple mounting clamps (11). The multiple first bolts (13) are respectively rotated and installed on the multiple first screws (12). The side ends of the multiple support rods (14) are respectively installed on the side walls of the multiple mounting clamps (11). The bottom end of the first support beam (15) is installed on the top end of the multiple support rods (14).
3. The high-voltage overhead line combined power fitting as described in claim 1, characterized in that, The support mechanism (02) includes a support plate (21), two sets of high-voltage insulators (22), a second bolt (23), and two sets of second support beams (24). The top of the support plate (21) is provided with a limit hole. The bottom ends of the two sets of high-voltage insulators (22) are respectively fixedly installed on the top of the support plate (21). The second bolt (23) is installed on the upper part of the two sets of high-voltage insulators (22). The two sets of second support beams (24) are respectively rotatably installed on the upper part of the two sets of high-voltage insulators (22).
4. The high-voltage overhead line combined power fitting as described in claim 1, characterized in that, The adjustment mechanism (03) includes a rotating rod (31), two sets of bearings (32), two sets of first mounting rods (33), two sets of winding wheels (34), two sets of fixing holes (35), and a limiting wheel (36). The top of the rotating rod (31) is provided with an insulated handle. The inner rings of the two sets of bearings (32) are respectively mounted on the rotating rod (31). The bottom ends of the two sets of first mounting rods (33) are respectively mounted on the outer rings of the two sets of bearings (32). The two sets of winding wheels (34) are respectively fixedly mounted on the rotating rod (31). The two sets of winding wheels (34) are respectively provided with two sets of fixing holes (35). The two sets of fixing holes (35) are respectively provided with electric chucks. The limiting wheel (36) is installed on the upper part of the rotating rod (31). The limiting wheel (36) is provided with multiple limiting holes.
5. A high-voltage overhead line combined power fitting as described in claim 3, characterized in that, The limiting mechanism (04) includes a limiting rod (41), a limiting plate (42), a spring (43), and a limiting groove (44). The top of the limiting rod (41) is provided with an insulating handle. The limiting plate (42) is fixedly installed on the lower part of the limiting rod (41). The bottom end of the spring (43) is installed on the top end of the limiting plate (42). The top end of the spring (43) is installed on the top end of the support plate (21). The limiting groove (44) is installed on the top end of the support plate (21).
6. A high-voltage overhead line combined power fitting as described in claim 3, characterized in that, The fixing mechanism (05) includes multiple fixing slots (51), multiple first fastening screws (52), multiple fastening bolts (53), multiple second fastening screws (54), multiple fixing plates (55), and multiple second mounting rods (56). Each of the multiple fixing slots (51) has a U-shaped groove inside. The top ends of the upper multiple fixing slots (51) are respectively installed on the bottom ends of the multiple second mounting rods (56). The top ends of the multiple first fastening screws (52) are respectively fixedly installed on the bottom ends of the upper multiple fixing slots (51). The lower multiple fixing... The grooves (51) are slidably mounted on the multiple first fastening screws (52), the multiple fastening bolts (53) are slidably mounted on the multiple first fastening screws (52), and the multiple fastening bolts (53) are located below the multiple fixing grooves (51). The top ends of the multiple second fastening screws (54) are rotatably mounted on the bottom ends of the multiple fixing plates (55). The multiple fixing plates (55) are located in the grooves of the multiple lower fixing grooves (51). The top ends of the multiple second mounting rods (56) are mounted on the bottom ends of the support plate (21).
Citation Information
Patent Citations
Combined multi-clamping-groove suspension fitting for electric power
CN217590180U